Question

The measure of an angle is 77 degrees. What is the measure of its supplementary angle?

• A. 92 Degrees
• B. 66 Degrees
• C. 103 Degrees
• D. 13 Degrees

Answer 1

The correct option is C 103 Degrees

Two angles are supplementary if their sum is ${180}^{\circ }$.

So, ${77}^{\circ }$ + Supplementary angle = ${180}^{\circ }$

$\Rightarrow$ Supplementary angle = ${180}^{\circ }-{77}^{\circ }={103}^{\circ }$